/*
 * MIT License
 *
 * Copyright (c) 2020 wen.gu <454727014@qq.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/***************************************************************************
* Name: av_demux.h
*
* Purpose: demux component implementation with libav.
*
* Developer:
*   wen.gu , 2018-12-29
*
* TODO:
*
***************************************************************************/
#ifndef __AV_DEMUX_H__
#define __AV_DEMUX_H__

/******************************************************************************
**    INCLUDES
******************************************************************************/
#include <vector>

#include "mp_demux.h"
extern "C"
{
#include "libavformat/avformat.h"
#include "libavcodec/avcodec.h"
#include "libavutil/avutil.h"
}

/******************************************************************************
**    MACROS
******************************************************************************/


/******************************************************************************
**    TYPE DEFINITIONS
******************************************************************************/

/******************************************************************************
**    CLASSES/FUNCTIONS DEFINITIONS
******************************************************************************/

class AvDemux : public MPDemux
{
public:
    AvDemux();
    virtual ~AvDemux();

public:
    MPError getContainerInfo(MPContainerInfo& info) override;
    MPError read(MPBuffer** buffer) override;
    MPError selectTrack(eMediaCategory category, int32_t idx) override;
    MPError unsleectTrack(eMediaCategory category, int32_t idx) override;
    MPError seek(int64_t posMs, eSeekMode mode = eSeekMode::PreviousSync) override;

public:
    MPError initialize(const MPDemuxCreateParam* mdcp);

    bool isExit();

protected:
    MPError initWithUrl(const char* uri);
    MPError initWithDataSource(MPDataSource* src);
    MPError processTrackInfo();
    MPError setDefaultTrackInfo();
    eMediaFormat codecId2Fmt(AVCodecID id);
    eMediaCategory avmediaType2Category(AVMediaType amt);
    AVMediaType category2MediaType(eMediaCategory ct);
private:
    int mAudId = -1;
    int mVidId = -1;
    uint8_t* mIoBuf = nullptr;
    AVIOContext* mAvIo = nullptr;
    AVFormatContext* mCtx = nullptr;
    MPDataSource* mSrc = nullptr;
    MPDemuxAddTrack mAddTrack = nullptr;

    std::string mUri;
};


#endif /** !__AV_DEMUX_H__ */